3621103 has 2 divisors, whose sum is σ = 3621104. Its totient is φ = 3621102.

The previous prime is 3621083. The next prime is 3621113. The reversal of 3621103 is 3011263.

It is a strong prime.

It is an emirp because it is prime and its reverse (3011263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3621103 - 2¹⁷ = 3490031 is a prime.

It is a super-2 number, since 2×3621103² = 26224773873218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3621113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810551 + 1810552.

It is an arithmetic number, because the mean of its divisors is an integer number (1810552).

Almost surely, 2^3621103 is an apocalyptic number.

3621103 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621103 is an equidigital number, since it uses as much as digits as its factorization.

3621103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3621103 is about 1902.9195989321. The cubic root of 3621103 is about 153.5607741044.

Adding to 3621103 its reverse (3011263), we get a palindrome (6632366).

The spelling of 3621103 in words is "three million, six hundred twenty-one thousand, one hundred three".